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TDA7442D Datasheet(PDF) 2 Page - STMicroelectronics |
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TDA7442D Datasheet(HTML) 2 Page - STMicroelectronics |
2 / 17 page TDA7442 - TDA7442D 2/17 Figure 3. Block Diagram (TDA7442) Figure 4. Block Diagram (TDA7442D) L-IN1 5 6 7 8 2 1 32 31 4 1113 1827 2826 22 14 13 29 23 25 24 30 17 16 20 19 310 9 L-R 0.47 µF SUPPLY VS CREF TREBLE BASS BIN(L) MUTE D98AU947B I2C BUS DECODER + LATCHES SPKR ATT TREBLE BASS 5.6nF MUTE SPKR ATT SCL SDA DIG GND ROUT LOUT 22 µF + - + - + R-IN4 0.47 µF 50K PS1 90Hz 100nF PS1 RPS1 SYMULATED MUSIC MUSIC/ SYMULATED OFF MIXING AMP LPF 9KHz EFFECT CONTROL MIXING AMP 1.2nF LP TREBLE-R 5.6nF TREBLE-L 100nF 5.6K 100nF BOUT(L) 100nF 100nF 5.6K BIN(R) BOUT(R) 79dB CONTROL + - 79dB CONTROL 50K 0.47 µF 50K 0.47 µF 50K 0.47 µF 50K 0.47 µF 50K 0.47 µF 50K 0.47 µF 50K 31.5dB control R-IN3 R-IN2 R-IN1 31.5dB control L-IN2 L-IN3 L-IN4 Vref OFF SURR OFF SURR RB FIX FIX VAR RB FIX VAR L+R 30K 30K 2.2 µF 2.2 µF MUXOUT(R) MONITOR(L) MONITOR(R) MUXOUT(L) L-IN1 4 5 6 7 3 2 1 28 10 11 16 24 25 23 19 12 13 26 20 22 21 27 15 14 18 17 9 8 L-R 0.47 µF SUPPLY VS CREF TREBLE BASS BIN(L) MUTE D01AU1248 I2C BUS DECODER + LATCHES SPKR ATT TREBLE BASS 5.6nF MUTE SPKR ATT SCL SDA DIG GND ROUT LOUT 22 µF + - + - + R-IN4 0.47 µF 50K PS1 90Hz 100nF PS1 RPS1 SYMULATED MUSIC MUSIC/ SYMULATED OFF MIXING AMP LPF 9KHz EFFECT CONTROL MIXING AMP 1.2nF LP TREBLE-R 5.6nF TREBLE-L 100nF 5.6K 100nF BOUT(L) 100nF 100nF 5.6K BIN(R) BOUT(R) 79dB CONTROL + - 79dB CONTROL 50K 0.47 µF 50K 0.47 µF 50K 0.47 µF 50K 0.47 µF 50K 0.47 µF 50K 0.47 µF 50K 31.5dB control R-IN3 R-IN2 R-IN1 31.5dB control L-IN2 L-IN3 L-IN4 Vref OFF SURR OFF SURR RB FIX FIX VAR RB FIX VAR L+R 30K 30K 2.2 µF 2.2 µF MUXOUT(R) MUXOUT(L) |
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